Tool device for welding longitudinal ribs of top and bottom plate units of steel structure bridge

Abstract

The utility model relates to the field of machining, in particular to a tool device for welding longitudinal ribs of top and bottom plate units of a steel structure bridge. The tool device comprises a walking trolley (1), walking wheels (2) are arranged below the walking trolley (1), a vertical support (7) is arranged on the walking trolley (1), a rotating structure (15) is arranged on the vertical support (7), and the rotating structure (15) is connected with a transverse rod (6). The two sides of the transverse rod (6) are connected with vertical supports through fixing parts (5). A universal joint (8) is arranged on the vertical support, welding heads (12) are arranged on a pipeline connected to the lower portion of the universal joint (8), the number of the welding heads (12) is two, and the welding heads (12) are symmetrically arranged around the trolley.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a tooling device for welding longitudinal ribs of top and bottom plate units of steel structure bridges. Background Art

[0002] Currently, in the welding of steel bridge structures, a single-torch lightweight automatic welding carriage or a trackless synchronous double-sided welding carriage is typically used to weld the longitudinal ribs of the top and bottom plate units. The single-torch lightweight automatic welding carriage uses a single welding head shielded by carbon dioxide gas to complete the welding of the longitudinal ribs of the top and bottom plate units. While this device significantly improves efficiency compared to manual welding, its application is limited due to the single welding head and the inability of the rotating wheels at the bottom of the carriage to change direction. The trackless synchronous double-sided welding carriage consists of two symmetrically fixed carbon dioxide gas shielded welding guns and a movable carriage. As the movable carriage moves over the workpiece to be welded, the two welding gun heads weld the welds on both sides of the workpiece, completing the welding of the longitudinal ribs of the top and bottom plate units. However, due to the relatively fixed two welding guns and the inability to turn while moving, its welding positions and structural forms are limited, making it less than ideal in full application.

[0003] With the continuous development of society, steel structure bridges will play a more important role in future construction projects. There will be more and more curved bridges and even shaped bridges. The above two welding devices will not be able to meet the welding requirements of the longitudinal ribs of the top plate units and bottom plate units in bridges with larger curves or even shaped bridges, making the company less efficient in welding this structure.

[0004] During the trolley's movement, there are also the following problems: unfavorable factors such as tiny welding slag on the track sidewalls can cause the device to deviate or become stuck. For example, the car body hitting the sidewall while moving is also a key problem.

[0005] On May 9, 2024, a search was conducted in the Chinese Patent Publication Database using "welding and trolley and tightening wheel" as abstract keywords, and no relevant literature was found. Utility Model Content

[0006] Purpose of the utility model: To provide a better tooling device for welding the longitudinal ribs of the top and bottom plate units of steel structure bridges. The specific purpose can be seen in the multiple substantial technical effects of the specific implementation part.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A tooling device for welding longitudinal ribs of top and bottom plate units of steel structure bridges, characterized in that:

[0009] This tooling device includes a traveling trolley 1, traveling wheels 2 are arranged below the traveling trolley 1, a vertical bracket 7 is arranged on the traveling trolley 1, a rotating structure 15 is arranged on the vertical bracket 7, and the rotating structure 15 is connected to a cross bar 6;

[0010] Both sides of the cross bar 6 are connected to a vertical bracket through a fixing part 5;

[0011] A universal joint 8 is arranged on the vertical bracket, a welding head 12 is arranged on the pipe connected below the universal joint 8, and there are two welding heads 12 which are symmetrically arranged around the trolley.

[0012] A further technical solution of the present utility model is that brackets are arranged on both sides of the traveling trolley 1, bracket moving holes 3 are arranged on the brackets, and it further includes a threaded rod that can move in the bracket moving holes 3. The threaded rod can be positioned by a positioning nut 4. The threaded rod is connected to a transverse spring shaft 9, a spring 14 is sleeved on the transverse spring shaft 9, a collar 13 is arranged at the end of the spring 14, the collar 13 is connected to a support shaft 11, and a pressing wheel 10 is installed on the support shaft 11.

[0013] A further technical solution of the present utility model is that the pressing wheels 10 on both sides of the traveling trolley 1 are symmetrically arranged.

[0014] A further technical solution of the present utility model is that the rotating structure 15 is a universal joint.

[0015] A further technical solution of the present utility model is that the traveling wheels 2 are universal wheels.

[0016] A further technical solution of the present utility model is that the fixing part 5 is a fixing bolt.

[0017] The present utility model adopting the above technical solution has the following beneficial effects compared with the prior art: The spring provides elastic force, the pressing wheel 10 presses against the side wall of the traveling edge, and is positioned through the spring device, ensuring that the device moves along the established track of the U-shaped groove when traveling. At the same time, the spring device can avoid the device deviating or jamming due to adverse factors such as tiny welding slag on the side wall of the track when the device is traveling. Description of the Drawings

[0018] In order to further illustrate the present utility model, the following is further described in conjunction with the drawings:

[0019] Figure 1 It is a three-dimensional view of the utility model;

[0020] Figure 2 It is a three-dimensional view of the spring 14;

[0021] Wherein: 1. Traveling trolley; 2. Traveling wheels; 3. Bracket moving holes; 4. Positioning nuts; 5. Fixed part; 6. Horizontal rod; 7. Vertical bracket; 8. Universal joint; 9. Horizontal spring shaft; 10. Tightening wheel; 11. Support shaft; 12. Welding head; 13. Collar; 14. Spring; 15. Rotating structure. Detailed implementation manners

[0022] The following further clarifies the present utility model in conjunction with the accompanying drawings and specific implementation manners. It should be understood that the following specific implementation manners are only used to illustrate the present utility model and not to limit the scope of the present utility model. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0024] This patent provides multiple parallel solutions. The different expressions belong to improved solutions or parallel solutions based on the basic solution. Each solution has its own unique features. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other. The fixing methods not described in the text can be any one of screw fixing, bolt fixing or glue bonding, etc.

[0025] Embodiment 1: Combining all the drawings; a tooling device for welding longitudinal ribs of the top and bottom plates of a welded steel structure bridge, characterized in that

[0026] The tooling device includes a traveling trolley 1, traveling wheels 2 are arranged below the traveling trolley 1, a vertical bracket 7 is arranged on the traveling trolley 1, a rotating structure 15 is arranged on the vertical bracket 7, and a transverse rod 6 is connected to the rotating structure 15;

[0027] Vertical brackets are connected to both sides of the transverse rod 6 through fixing parts 5;

[0028] Universal joints 8 are arranged on the vertical brackets, welding heads 12 are arranged on the pipes connected below the universal joints 8, and there are two welding heads 12 which are symmetrically arranged around the trolley. The substantial technical effects achieved by the technical solution here and its implementation process, that is, the basic function, are as follows: Aiming at the defects of the prior art "adverse factors such as tiny welding slag on the side wall of the track cause the device to deviate or get stuck. For example, it is also a key problem that the vehicle body hits the side wall when walking.", this patent creatively adopts welding on both sides, which is more flexible. This device is mainly used for welding the longitudinal ribs of the top plate unit and the bottom plate unit of a steel structure bridge. The so-called top plate unit and bottom plate unit of a steel structure bridge mainly refer to the unit components formed by welding several longitudinal ribs along the length direction of the bridge on the top and bottom plates. The longitudinal ribs can be plate ribs or U-shaped ribs. The specific welding usage method is as follows: Select the welds to be welded, place this tooling device between two adjacent longitudinal ribs on the riveted top and bottom plate units to be welded, select a single gun head or a double gun head according to the number of welds to be welded, start the traveling trolley, and make it travel on the workpiece to be welded to complete the welding. Due to the addition of universal wheels and spring devices in this transformation, this tooling device can meet the welding of the longitudinal ribs of the top plate unit and the bottom plate unit of a curved bridge or a shaped bridge while meeting the welding of the longitudinal ribs of the top plate unit and the bottom plate unit of a straight bridge.

[0029] Embodiment 2: As a further improvable solution or a parallel solution or an alternative independent solution, brackets are arranged on both sides of the traveling trolley 1, bracket moving holes 3 are arranged on the brackets, and there is also a threaded rod that can move in the bracket moving holes 3. The threaded rod can be positioned by a positioning nut 4. The threaded rod is connected to a transverse spring shaft 9. A spring 14 is sleeved on the transverse spring shaft 9. A collar 13 is arranged at the end of the spring 14. The collar 13 is connected to a support shaft 11. A pressing wheel 10 is installed on the support shaft 11. The substantial technical effects achieved by the technical solution here and its implementation process, that is, the basic function, are as follows: The spring provides elastic force, and the pressing wheel 10 presses against the side wall of the traveling edge. Positioning is carried out through the spring device to ensure that the device moves along the established track of the U-shaped groove when walking. At the same time, the spring device can avoid the phenomenon that the device deviates or gets stuck due to adverse factors such as tiny welding slag on the side wall of the track when walking.

[0030] Embodiment 3: As a further improvable solution, parallel solution or alternative independent solution, the pressing wheels 10 on both sides of the walking trolley 1 are symmetrically arranged. The substantial technical effects achieved by the technical solution herein and its implementation process, i.e., the basic functions, are as follows: Symmetrical arrangement results in better force application.

[0031] Embodiment 4: As a further improvable solution, parallel solution or alternative independent solution, the rotating structure 15 is a universal joint. The substantial technical effects achieved by the technical solution herein and its implementation process, i.e., the basic functions, are as follows: The universal joint facilitates multi-angle direction adjustment.

[0032] Embodiment 5: As a further improvable solution, parallel solution or alternative independent solution, the walking wheels 2 are universal wheels. The substantial technical effects achieved by the technical solution herein and its implementation process, i.e., the basic functions, are as follows: Facilitates walking.

[0033] Embodiment 6: As a further improvable solution, parallel solution or alternative independent solution, the fixed part 5 is a fixing bolt. The substantial technical effects achieved by the technical solution herein and its implementation process, i.e., the basic functions, are as follows: Using a fixing bolt for pressing and fixing is a preferred structure.

[0034] Innovatively, each of the above effects exists independently, and a set of structures can also be used to achieve the combination of the above results.

[0035] It should be noted that the multiple solutions provided by this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve the co-realization of multiple effects.

[0036] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed protection.

Claims

1. A tooling device for welding longitudinal ribs of the top and bottom plates of a welded steel structure bridge, characterized in that the tooling device includes a traveling trolley (1), traveling wheels (2) are arranged below the traveling trolley (1), a vertical bracket (7) is arranged on the traveling trolley (1), a rotating structure (15) is arranged on the vertical bracket (7), and the rotating structure (15) is connected with a transverse rod (6); Vertical brackets are connected to both sides of the transverse rod (6) through fixing parts (5); A universal joint (8) is arranged on the vertical bracket, a welding head (12) is arranged on the pipe connected below the universal joint (8), and there are two welding heads (12) which are symmetrically arranged around the trolley.

2. The tooling device for longitudinal ribs of the top and bottom plates of a welded steel structure bridge according to claim 1, characterized in that, Supports are arranged on both sides of the traveling trolley (1), support moving holes (3) are arranged on the supports, and there is also a threaded rod that can move in the support moving holes (3), the threaded rod can be positioned by a positioning nut (4), the threaded rod is connected with a transverse spring shaft (9), a spring (14) is sleeved on the transverse spring shaft (9), a collar (13) is arranged at the end of the spring (14), the collar (13) is connected with a support shaft (11), and a pressing wheel (10) is installed on the support shaft (11).

3. The tooling device for longitudinal ribs of the top and bottom plates of a welded steel structure bridge according to claim 1, characterized in that, The pressing wheels (10) on both sides of the traveling trolley (1) are symmetrically arranged.

4. The tooling device for longitudinal ribs of the top and bottom plates of a welded steel structure bridge according to claim 1, wherein, The rotating structure (15) is a universal joint.

5. The tooling device for longitudinal ribs of the top and bottom plates of a welded steel structure bridge according to claim 1, characterized in that, The traveling wheels (2) are universal wheels.

6. The tooling device for longitudinal ribs of the top and bottom plates of a welded steel structure bridge according to claim 1, characterized in that, The fixing part (5) is a fixing bolt.

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